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<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/index.html">general</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html">avx512</a></h3>

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<a name="191588766"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/191588766" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Luca Barbato <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#191588766">(Mar 24 2020 at 10:13)</a>:</h4>
<p>the current nightly is not broken for linking, on the other hand the avx512 messup makes even suggesting to use nightly a no-op...</p>



<a name="191589842"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/191589842" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Amanieu <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#191589842">(Mar 24 2020 at 10:22)</a>:</h4>
<p>The avx512 issue is now fixed on nightly</p>



<a name="191591099"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/191591099" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Luca Barbato <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#191591099">(Mar 24 2020 at 10:34)</a>:</h4>
<p>good :)</p>



<a name="191591133"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/191591133" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Luca Barbato <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#191591133">(Mar 24 2020 at 10:34)</a>:</h4>
<p>I guess I can document to use the msvc variant to build the tools</p>



<a name="191598865"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/191598865" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> XAMPPRocky <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#191598865">(Mar 24 2020 at 11:54)</a>:</h4>
<p><span class="user-mention" data-user-id="131070">@Luca Barbato</span> That change will be in the next release (1.43.0)</p>



<a name="193333479"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/193333479" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Luca Barbato <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#193333479">(Apr 08 2020 at 15:08)</a>:</h4>
<p><span class="user-mention silent" data-user-id="143274">Amanieu</span> <a href="#narrow/stream/122651-general/topic/can.20we.20make.20a.20point.20release.20with.20the.20mingw.20fix.3F/near/191589842" title="#narrow/stream/122651-general/topic/can.20we.20make.20a.20point.20release.20with.20the.20mingw.20fix.3F/near/191589842">said</a>:</p>
<blockquote>
<p>The avx512 issue is now fixed on nightly</p>
</blockquote>
<p>as per <code>rustc 1.44.0-nightly (42abbd887 2020-04-07)</code></p>
<div class="codehilite"><pre><span></span>error[E0658]: use of unstable library feature &#39;stdsimd&#39;
  --&gt; src/cpu_features/x86.rs:50:12
   |
50 |         &amp;&amp; is_x86_feature_detected!(&quot;avx512ifma&quot;)
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
</pre></div>


<p>The problem persists.</p>



<a name="193333693"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/193333693" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#193333693">(Apr 08 2020 at 15:09)</a>:</h4>
<p>We may have not stabilized everything? Not sure.</p>



<a name="193333831"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/193333831" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#193333831">(Apr 08 2020 at 15:10)</a>:</h4>
<p>cc <span class="user-mention" data-user-id="143274">@Amanieu</span> in case the quote didn't ping you</p>



<a name="193333905"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/193333905" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Amanieu <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#193333905">(Apr 08 2020 at 15:10)</a>:</h4>
<p>Yea we didn't stabilize everything.</p>



<a name="193334016"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/193334016" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Amanieu <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#193334016">(Apr 08 2020 at 15:11)</a>:</h4>
<p>AFAIK only avx512bw and avx512f were used, so we stabilized those.</p>



<a name="193334056"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/193334056" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Amanieu <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#193334056">(Apr 08 2020 at 15:11)</a>:</h4>
<p><span class="user-mention" data-user-id="131070">@Luca Barbato</span> Where is this code from?</p>



<a name="193334131"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/193334131" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Luca Barbato <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#193334131">(Apr 08 2020 at 15:12)</a>:</h4>
<p>rav1e</p>



<a name="193334155"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/193334155" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Luca Barbato <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#193334155">(Apr 08 2020 at 15:12)</a>:</h4>
<p><a href="https://github.com/xiph/rav1e/" title="https://github.com/xiph/rav1e/">https://github.com/xiph/rav1e/</a></p>



<a name="193334325"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/193334325" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Luca Barbato <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#193334325">(Apr 08 2020 at 15:13)</a>:</h4>
<p>I'm using it to know if I can enable avx512 or avx512-icelake assembly-optimized routines so having the whole batch would be nice to have</p>



<a name="195095076"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/195095076" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Luca Barbato <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#195095076">(Apr 23 2020 at 17:37)</a>:</h4>
<p>the current stable is broken as well.</p>



<a name="195095116"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/195095116" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Luca Barbato <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#195095116">(Apr 23 2020 at 17:37)</a>:</h4>
<p>should I open an issue so it won't get lost again ^^;</p>



<a name="195095510"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/195095510" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Luca Barbato <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#195095510">(Apr 23 2020 at 17:40)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/issues/71473" title="https://github.com/rust-lang/rust/issues/71473">https://github.com/rust-lang/rust/issues/71473</a></p>



<a name="195104211"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/122651-general/topic/avx512/near/195104211" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> DPC <a href="https://rust-lang.github.io/zulip_archive/stream/122651-general/topic/avx512.html#195104211">(Apr 23 2020 at 18:54)</a>:</h4>
<p><span class="user-mention" data-user-id="239881">@Josh Triplett</span> shouldn't it be I-prioritised instead of I-nominated?</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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